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Default value of primitive data types in Java
Primitive datatypes are predefined by the language and named by a keyword in Java. Here is an example to display the default value of primitive data types.
Example
public class Demo { static boolean val1; static double val2; static float val3; static int val4; static long val5; static String val6; public static void main(String[] args) { System.out.println("Default values....."); System.out.println("Val1 = " + val1); System.out.println("Val2 = " + val2); System.out.println("Val3 = " + val3); System.out.println("Val4 = " + val4); System.out.println("Val5 = " + val5); System.out.println("Val6 = " + val6); } }
Output
Default values..... Val1 = false Val2 = 0.0 Val3 = 0.0 Val4 = 0 Val5 = 0 Val6 = null
Above, firstly we have declared variables of specific type. Remember, to get the default values, you do not need to assign values to the variable.
static boolean val1; static double val2; static float val3; static int val4; static long val5; static String val6;
Now to display the default values, you need to just print the variables.
System.out.println("Val1 = " + val1); System.out.println("Val2 = " + val2); System.out.println("Val3 = " + val3); System.out.println("Val4 = " + val4); System.out.println("Val5 = " + val5); System.out.println("Val6 = " + val6);
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